Sorry Stuart.
I'll come back to this thread in 6 months and see how the btcc nova is coming along
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Sorry Stuart.
I'll come back to this thread in 6 months and see how the btcc nova is coming along
That exhaust manifold is radical in design and is suited for FWD running a dry sump and low ride height. You'll need to run a non o.e pedal box setup as it runs where the original servo mounts.
Induction temps might be something to consider when running exhaust tubing that way ~ a BTCC car would have a box on the TB's with a cold air feed. You'ud almost certainly want to heat wrap it esp' if it'll be glowing red hot from the 9,000 rpm+ you hope for.
If you are serious about a BTCC inspired build then ditch the wide arches and think about things like structural rigidity, corner weights, ride height and wheel base. BTCC cars don't have a wider trac - so look at how the cavalier was modified for the route you should go.
Don't let anyone tell you that manifold isn't the tits ~ although it's not made from titanium [like some 300HP+ N/a Novas have]. Thing is you can get the front very low with relatively little fabrication work; the back in turn requires extensive fabrication to just get the car to sit level.
Get this right and I'm sure people would like it if it "only" had near stock power.
Do you fancy selling the manifold?
a little off-topic, but i'm just wondering.. here in holland youre always told, dont mess with the exhaust manifold, a different one (like a Lexmaul) will give just a 5hp and about 8-10 nm of torque.
so why are all the uk guys changing the manifold?
if you've heard that its probably because the stock manifold is good for 180 or so bhp.
above that you need an item thats going to flow well.
thats where the likes of BTB, John wilcoz, tony law exhaust, etc come in, they have been making awesome manifolds for years and years, that with the right mods will help gain more than your usual '5bhp'
tbh there what id call proper manifold, not where some companies thought we'll make a manifold slightly larger than stock and claim it makes 15bhp more on a stock engine, wont work like that with an xe
when your chasing horsepower tho 5bhp is worth going forQuote:
Originally Posted by mayhem
hows this actually going? is tthe btcc nova done?
An exhaust quoting +5 BHP will be on the stock engine.
Put that same exhaust on an engine that's had the induction improved you'll see a larger gain from "just the exhaust".
Do some head work to the above and see more power from "just the exhaust". Understand it works on a sliding scale…
Interesting read this thread.....
The manifold is utter pap for your use. Its designed for an XE thats sitting around 10inch further back and around 6inch lower compared to a standard XE Cav. Not only does it look a mess, its funking totally useless for your need!!
As for a figure near 300bhp? And CK saying it'll be a similiar spec to a Swindon built motor but higher cc's? Well, I hope youve got a house you can re-mortgage.......serveral times over!!!!!
I have had the chance to have a look at a stripped down Swindon engine (my mate is rebuilding his) and there are modifications to the head and block that you would never think of.
A cheap way of getting your hands on one is to buy a single seater with one fitted. That would also be cheaper than buying the bits and building a 300bhp XE from scratch :D